# A history of network synthesis and filter theory for circuits composed of resistors, inductors, and capacitors

@article{Darlington1999AHO, title={A history of network synthesis and filter theory for circuits composed of resistors, inductors, and capacitors}, author={Sidney Darlington}, journal={IEEE Transactions on Circuits and Systems I-regular Papers}, year={1999}, volume={46}, pages={4-13} }

This paper is an informal history of the birth and growth of network synthesis and filter theory, as it was developed for RLC circuits. It includes events, experiences, and anecdotes which are not all well documented but may make interesting reading. Other papers in this issue are histories of other aspects of circuit theory; for the most part descended from the RLC theory.

#### 39 Citations

Electrical and Mechanical Passive Network Synthesis

- Engineering, Computer Science
- Recent Advances in Learning and Control
- 2008

The context of this paper is the application of electrical circuit synthesis to problems of mechanical control. The use of the electrical-mechanical analogy and the inerter mechanical element is… Expand

Synthesis of mechanical networks: the inerter

- Engineering, Computer Science
- IEEE Trans. Autom. Control.
- 2002

The main contributions of the paper are the introduction of a device, which win be called the inerter, which is the true network dual of the spring, which contrasts with the mass element which, by definition, always has one terminal connected to ground. Expand

GA automated design and synthesis of analog circuits with practical constraints

- Computer Science
- Proceedings of the 2001 Congress on Evolutionary Computation (IEEE Cat. No.01TH8546)
- 2001

A genetic algorithm (GA) based "growing" technique is developed to design and synthesise analogue circuits with practical constraints, such as the manufacturer's preferred component values, which are realisable, effective and of novel topology. Expand

Implicit network descriptions of RLC networks and the problem of re-engineering

- Mathematics
- 2017

The thesis deals with aspects of Systems Re-engineering specialised to the case of passive electrical networks. Re-engineering is a problem different from traditional control problems and this… Expand

A Review and Modern Approach to LC Ladder Synthesis

- Engineering
- 2011

Ultra low power circuits require robust and reliable operation despite the unavoidable use of low currents and the weak inversion transistor operation region. For analogue domain filtering doubly… Expand

MAKE THE MOST OF COMPONENTS BY USING ALTERNATIVE CIRCUIT CONFIGURATIONS TO APPROXIMATE IDEAL RESPONSE AND IMPROVE CIRCUIT YIELD

Aprevious EDN article proposed a technique for modifying active-RC-filter-design equations to use exact standard-component values (Reference 1). The main idea was to determine standardcomponent-value… Expand

Combining standard component values improves circuit designs

- 2019

A previous EDN article proposed a technique for modifying active-RC-filter-design equations to use exact standard-component values (Reference 1).The main idea was to determine standardcomponent-value… Expand

Circuit synthesis of passive descriptor systems—a modified nodal approach

- Mathematics
- 2010

In this work we consider the problem of multiport passive reciprocal network synthesis by descriptor systems. A numerical method is presented that leads to circuit equations in modified nodal… Expand

Mathematical Modelling of Simple Passive RC Filters Using Floating Admittance Technique

- Computer Science
- 2020 IEEE International Conference for Innovation in Technology (INOCON)
- 2020

This article describes mathematical modeling of simple L-, T - and π-type filters focused with the solutions using Floating Admittance approach, which is very attractive for any kind of circuits considering the size and complexity. Expand

Frequency Design of Lossless Passive Electronic Filters: A State-Space Formulation of the Direct Synthesis Approach

- Computer Science
- IEEE Transactions on Circuits and Systems I: Regular Papers
- 2021

This paper deals with the frequency design of lossless passive electronic filters under magnitude constraints using the port-Hamiltonian Differential Algebraic Equation (pHDAE) representation, leading to solve an optimization problem of moderate complexity. Expand

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Darlington is a past Chairman of the IRE Circuit Theory Group. He received the IEEE Edison Medal in 1975 and the IEEE Medal of Honor in 1981

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